Home › SMLE (Saudi Medical Licensing) › Anatomy & Physiology › The Digestive System › Which three features are unique to the large int…
Which three features are unique to the large intestine?
AVilli, microvilli, and circular folds
BRugae, gastric pits, and gastric glands
CPeyer's patches, lacteals, and crypts
DTeniae coli, haustra, and epiploic appendages
Answer & Solution
Correct answer: D. Teniae coli, haustra, and epiploic appendages
1. The teniae coli are three bands of smooth muscle forming the longitudinal muscle layer of the colon.
2. Their tonic contraction bunches the colon into pouches called haustra, giving it a wrinkled look.
3. Small fat-filled sacs of visceral peritoneum attached to the teniae coli are the epiploic appendages.
4. Those three together are unique to the large intestine, so the last option is correct.
5. Villi, microvilli and circular folds are absent from the large intestine and belong to the small intestine.
6. Rugae and gastric pits belong to the stomach, so the second option names the wrong organ.
7. Peyer's patches and lacteals are concentrated in the small intestine, especially the distal ileum.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 23 "The Digestive System", section 23.5 The Small and Large Intestines_
Related questions
About how much of the water reaching the small intestine is absorbed there?Vitamin B12 binds intrinsic factor. Where is the resulting complex taken up, and by what mGlucose and galactose enter intestinal cells by co-transport with sodium. How does fructosBy which route do chylomicrons reach the bloodstream after leaving an intestinal epitheliaWhat does pancreatic lipase leave behind after acting on one triglyceride?Lactase acts on lactose. Which two monosaccharides does it release?Which three structures are the liver's three main components?Which component makes pancreatic juice slightly alkaline?